use ClientDW_A
db.PICompanyAssessment.find().snapshot().forEach(
    function (elem) {        
        elem.Indicators.forEach(function(indicator)
        {
            var lvls = [0, 5, 10, 25, 50];
            var id = lvls.indexOf(indicator.LevelOfInvolvement.Start) + 1;
            indicator.LevelOfInvolvement._id = NumberInt(id);
        });       
        
        db.PICompanyAssessment.update(
            { _id: elem._id },
            { $set: { Indicators : elem.Indicators } }
        );
    }
);

use ClientDW_B
db.PICompanyAssessment.find().snapshot().forEach(
    function (elem) {        
        elem.Indicators.forEach(function(indicator)
        {
            var lvls = [0, 5, 10, 25, 50];
            var id = lvls.indexOf(indicator.LevelOfInvolvement.Start) + 1;
            indicator.LevelOfInvolvement._id = NumberInt(id);
        });       
        
        db.PICompanyAssessment.update(
            { _id: elem._id },
            { $set: { Indicators : elem.Indicators } }
        );
    }
);